[Event "World op 21st"]
[Site "Philadelphia"]
[Date "1993.??.??"]
[Round "2"]
[White "Bauza, Alejandro"]
[Black "Mercere, W."]
[Result "1-0"]
[ECO "A08"]
[WhiteElo "2260"]
[PlyCount "65"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e6 2. d3 d5 3. Nd2 c5 4. Ngf3 Nc6 5. g3 Bd6 6. Bg2 Nge7 7. 0-0 Rb8 8. a4 a6 9. Nh4 b5 10. axb5 axb5 11. f4 c4 12. Ndf3 cxd3 13. cxd3 Qb6+ 14. Kh1 b4 15. Qe2 dxe4 16. dxe4 Bc5 17. Re1 Na5 18. Be3 Bxe3 19. Qxe3 Qxe3 20. Rxe3 Nc4 21. Rb3 Nc6 22. Bf1 N6a5 23. Bxc4 Nxb3 24. Bxb3 Bb7 25. f5 Bxe4 26. fxe6 f5 27. Ra7 g5 28. Ba4+ Kd8 29. Nxf5 Bxf5 30. Nxg5 Bg6 31. Bc2 Re8 32. Bxg6 hxg6 33. Nf7+ 1-0

[Event "World op"]
[Site "Philadelphia"]
[Date "1988.??.??"]
[Round "?"]
[White "Belcher, Edward"]
[Black "Mercere, W."]
[Result "0-1"]
[ECO "B70"]
[PlyCount "60"]
[EventDate "1988.06.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Bb5+ Bd7 7. 0-0 Bg7 8. Be3 0-0 9. h3 a6 10. Bd3 Nc6 11. Nd5 Nxd5 12. Nxc6 Nxe3 13. Nxd8 Nxd1 14. Raxd1 Rfxd8 15. b3 Rac8 16. c4 b5 17. f4 bxc4 18. bxc4 Be6 19. Rc1 Rc5 20. f5 Bd7 21. Rb1 Ra5 22. fxg6 hxg6 23. c5 Be6 24. cxd6 exd6 25. Rb4 d5 26. exd5 Bxd5 27. Rf2 Be6 28. Rf3 Rxa2 29. Be4 Rd1+ 30. Rf1 Bd4+ 0-1

[Event "World op"]
[Site "Philadelphia"]
[Date "1988.??.??"]
[Round "?"]
[White "Blocker, Calvin"]
[Black "Mercere, W."]
[Result "1-0"]
[ECO "C26"]
[WhiteElo "2390"]
[PlyCount "55"]
[EventDate "1988.06.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. g3 d5 4. exd5 c6 5. d6 Bxd6 6. Bg2 0-0 7. d3 Be6 8. Nge2 Nbd7 9. h3 Nd5 10. Ne4 Be7 11. g4 f5 12. gxf5 Bxf5 13. 0-0 Nf4 14. Bxf4 exf4 15. Nd4 Ne5 16. Nxf5 Rxf5 17. Bf3 Bh4 18. Bg4 Rg5 19. Nxg5 Qxg5 20. Kh1 f3 21. Bxf3 Rf8 22. Bg2 Bxf2 23. d4 Ng6 24. Qe2 Qg3 25. Qe6+ Kh8 26. Qg4 Qe3 27. Rad1 Nf4 28. Qf3 1-0

[Event "World op"]
[Site "Philadelphia"]
[Date "1988.??.??"]
[Round "?"]
[White "Mercere, W."]
[Black "Blankenau, Mike P"]
[Result "0-1"]
[ECO "B19"]
[BlackElo "2240"]
[PlyCount "64"]
[EventDate "1988.06.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 Ngf6 11. Bd2 Qc7 12. 0-0-0 0-0-0 13. Qe2 e6 14. Ne5 Nb6 15. Ba5 Rd5 16. b4 Rxa5 17. bxa5 Na4 18. Qf3 Qxa5 19. Nc4 Qg5+ 20. Kb1 Qb5+ 21. Qb3 Nc3+ 22. Kb2 Nxd1+ 23. Rxd1 Nxh5 24. Qxb5 cxb5 25. Nb6+ axb6 26. Nxh5 Bd6 27. d5 g6 28. Ng3 Be5+ 29. Kb3 Rd8 30. Rh1 Rxd5 31. Rxh6 Bxg3 32. fxg3 Rh5 0-1

[Event "World op"]
[Site "Philadelphia"]
[Date "1988.??.??"]
[Round "?"]
[White "Mercere, W."]
[Black "Sangiamo, Jerry"]
[Result "1/2-1/2"]
[ECO "C44"]
[PlyCount "90"]
[EventDate "1988.06.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. d3 Nc6 4. Be2 d5 5. Nbd2 Bc5 6. 0-0 Bg4 7. c3 h6 8. b4 Bd6 9. Qc2 a6 10. a3 0-0 11. Re1 Qd7 12. Nf1 Rad8 13. Ne3 Be6 14. Bb2 Ne7 15. Bf1 Nh7 16. exd5 Nxd5 17. Nxd5 Bxd5 18. Nxe5 Qf5 19. c4 Be6 20. Qc3 Qh5 21. c5 Be7 22. Nd7 Bf6 23. Nxf6+ Nxf6 24. Re3 Rd5 25. Rg3 Rg5 26. Rxg5 Qxg5 27. Re1 Nd5 28. Qe5 Qg6 29. h4 Nf6 30. Qxc7 Nh5 31. Re3 Bd5 32. Qe5 Bc6 33. g3 Rd8 34. Be2 Rd5 35. Qb8+ Kh7 36. Re5 Nf4 37. Rxd5 Nxe2+ 38. Kf1 Nxg3+ 39. Qxg3 Bxd5 40. Be5 f6 41. Qxg6+ Kxg6 42. Bd6 h5 43. Ke2 Kf5 44. Ke3 g5 45. hxg5 fxg5 1/2-1/2

[Event "World op"]
[Site "Philadelphia"]
[Date "1988.??.??"]
[Round "?"]
[White "Mercere, W."]
[Black "Sprayberry, Darin"]
[Result "0-1"]
[ECO "B21"]
[PlyCount "56"]
[EventDate "1988.06.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 d6 6. Bc4 e6 7. 0-0 Be7 8. Qe2 a6 9. Rd1 Qc7 10. Bf4 b5 11. Bb3 Bb7 12. Rac1 Rd8 13. Nd5 Qb8 14. Nxe7 Ngxe7 15. Ng5 h6 16. Nf3 0-0 17. Qd2 Ne5 18. Bxh6 Bxe4 19. Nxe5 dxe5 20. Qg5 Ng6 21. Bxg7 Kxg7 22. h4 f6 23. Qg3 Kf7 24. h5 Nf4 25. Qg4 Rg8 26. Bxe6+ Nxe6 27. Qxe4 Ng5 28. h6 Nxe4 0-1

